java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:16,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:16,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:16,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:16,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:16,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:16,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:16,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:16,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:16,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:16,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:16,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:16,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:16,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:16,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:16,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:16,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:16,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:16,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:16,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:16,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:16,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:16,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:16,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:16,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:16,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:16,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:16,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:16,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:16,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:16,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:16,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:16,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:16,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:16,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:16,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:16,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:16,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:16,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:16,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:16,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:16,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:14:16,750 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:16,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:16,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:16,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:16,752 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:16,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:16,752 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:16,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:16,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:16,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:16,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:16,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:16,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:16,754 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:16,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:16,754 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:16,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:16,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:16,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:16,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:16,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:16,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:16,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:16,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:16,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:16,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:16,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:16,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:16,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:14:17,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:17,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:17,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:17,045 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:17,045 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:17,046 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-10-15 01:14:17,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8da24e512/b74ce4bf4a3c402e949c03fb52ad6f0d/FLAGb5cb83613 [2019-10-15 01:14:17,776 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:17,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-10-15 01:14:17,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8da24e512/b74ce4bf4a3c402e949c03fb52ad6f0d/FLAGb5cb83613 [2019-10-15 01:14:17,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8da24e512/b74ce4bf4a3c402e949c03fb52ad6f0d [2019-10-15 01:14:17,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:17,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:17,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:17,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:17,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:17,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:17" (1/1) ... [2019-10-15 01:14:17,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2322f431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:17, skipping insertion in model container [2019-10-15 01:14:17,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:17" (1/1) ... [2019-10-15 01:14:17,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:18,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:18,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:18,860 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:19,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:19,096 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:19,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19 WrapperNode [2019-10-15 01:14:19,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:19,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:19,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:19,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:19,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... [2019-10-15 01:14:19,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:19,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:19,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:19,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:19,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:19,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:19,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:19,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:19,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:19,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:19,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:19,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:19,351 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 01:14:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:14:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:14:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:14:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:14:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:14:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:14:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:14:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:14:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:14:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 01:14:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:14:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:14:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:14:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:14:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:14:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:14:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:14:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:21,614 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:21,614 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:21,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:21 BoogieIcfgContainer [2019-10-15 01:14:21,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:21,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:21,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:21,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:21,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:17" (1/3) ... [2019-10-15 01:14:21,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ef9d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:21, skipping insertion in model container [2019-10-15 01:14:21,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:19" (2/3) ... [2019-10-15 01:14:21,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ef9d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:21, skipping insertion in model container [2019-10-15 01:14:21,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:21" (3/3) ... [2019-10-15 01:14:21,626 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2019-10-15 01:14:21,640 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:21,649 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:21,661 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:21,692 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:21,692 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:21,692 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:21,692 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:21,692 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:21,693 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:21,693 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:21,693 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:21,731 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states. [2019-10-15 01:14:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-15 01:14:21,759 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:21,760 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:21,762 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:21,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:21,766 INFO L82 PathProgramCache]: Analyzing trace with hash -175128502, now seen corresponding path program 1 times [2019-10-15 01:14:21,774 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:21,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967406963] [2019-10-15 01:14:21,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:21,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:21,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:14:22,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967406963] [2019-10-15 01:14:22,471 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:22,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:14:22,472 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189302566] [2019-10-15 01:14:22,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:14:22,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:22,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:14:22,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:22,496 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 2 states. [2019-10-15 01:14:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:22,579 INFO L93 Difference]: Finished difference Result 918 states and 1250 transitions. [2019-10-15 01:14:22,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:14:22,581 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 220 [2019-10-15 01:14:22,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:22,607 INFO L225 Difference]: With dead ends: 918 [2019-10-15 01:14:22,608 INFO L226 Difference]: Without dead ends: 587 [2019-10-15 01:14:22,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-10-15 01:14:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2019-10-15 01:14:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-15 01:14:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 801 transitions. [2019-10-15 01:14:22,770 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 801 transitions. Word has length 220 [2019-10-15 01:14:22,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:22,775 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 801 transitions. [2019-10-15 01:14:22,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:14:22,775 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 801 transitions. [2019-10-15 01:14:22,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:14:22,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:22,784 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:22,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash 217234565, now seen corresponding path program 1 times [2019-10-15 01:14:22,786 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:22,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038039292] [2019-10-15 01:14:22,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:22,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:22,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:14:23,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038039292] [2019-10-15 01:14:23,203 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:23,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:23,204 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083331506] [2019-10-15 01:14:23,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:23,210 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:23,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:23,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:23,210 INFO L87 Difference]: Start difference. First operand 587 states and 801 transitions. Second operand 3 states. [2019-10-15 01:14:23,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:23,306 INFO L93 Difference]: Finished difference Result 901 states and 1210 transitions. [2019-10-15 01:14:23,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:23,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-10-15 01:14:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:23,319 INFO L225 Difference]: With dead ends: 901 [2019-10-15 01:14:23,319 INFO L226 Difference]: Without dead ends: 590 [2019-10-15 01:14:23,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-15 01:14:23,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 589. [2019-10-15 01:14:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-10-15 01:14:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 803 transitions. [2019-10-15 01:14:23,351 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 803 transitions. Word has length 221 [2019-10-15 01:14:23,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:23,351 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 803 transitions. [2019-10-15 01:14:23,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 803 transitions. [2019-10-15 01:14:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:14:23,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:23,357 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:23,358 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:23,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1493318645, now seen corresponding path program 1 times [2019-10-15 01:14:23,358 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:23,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290358940] [2019-10-15 01:14:23,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:23,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:23,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:14:23,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290358940] [2019-10-15 01:14:23,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:23,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:23,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283196299] [2019-10-15 01:14:23,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:23,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:23,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:23,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:23,586 INFO L87 Difference]: Start difference. First operand 589 states and 803 transitions. Second operand 3 states. [2019-10-15 01:14:23,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:23,626 INFO L93 Difference]: Finished difference Result 1156 states and 1607 transitions. [2019-10-15 01:14:23,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:23,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:14:23,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:23,632 INFO L225 Difference]: With dead ends: 1156 [2019-10-15 01:14:23,632 INFO L226 Difference]: Without dead ends: 632 [2019-10-15 01:14:23,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:23,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-10-15 01:14:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 631. [2019-10-15 01:14:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-15 01:14:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 875 transitions. [2019-10-15 01:14:23,661 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 875 transitions. Word has length 231 [2019-10-15 01:14:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:23,662 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 875 transitions. [2019-10-15 01:14:23,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:23,662 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 875 transitions. [2019-10-15 01:14:23,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-15 01:14:23,667 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:23,668 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:23,668 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:23,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1395259844, now seen corresponding path program 1 times [2019-10-15 01:14:23,669 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:23,669 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693825614] [2019-10-15 01:14:23,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:23,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:23,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:14:23,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693825614] [2019-10-15 01:14:23,832 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:23,832 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:23,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467550930] [2019-10-15 01:14:23,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:23,833 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:23,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:23,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:23,834 INFO L87 Difference]: Start difference. First operand 631 states and 875 transitions. Second operand 3 states. [2019-10-15 01:14:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:23,880 INFO L93 Difference]: Finished difference Result 1279 states and 1818 transitions. [2019-10-15 01:14:23,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:23,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-10-15 01:14:23,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:23,887 INFO L225 Difference]: With dead ends: 1279 [2019-10-15 01:14:23,888 INFO L226 Difference]: Without dead ends: 713 [2019-10-15 01:14:23,890 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-10-15 01:14:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2019-10-15 01:14:23,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-10-15 01:14:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1013 transitions. [2019-10-15 01:14:23,924 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1013 transitions. Word has length 232 [2019-10-15 01:14:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:23,925 INFO L462 AbstractCegarLoop]: Abstraction has 712 states and 1013 transitions. [2019-10-15 01:14:23,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1013 transitions. [2019-10-15 01:14:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-15 01:14:23,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:23,936 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:23,936 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:23,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1916343691, now seen corresponding path program 1 times [2019-10-15 01:14:23,937 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:23,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651692475] [2019-10-15 01:14:23,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:23,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:23,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:14:24,282 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651692475] [2019-10-15 01:14:24,282 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:24,283 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:24,283 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043840512] [2019-10-15 01:14:24,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:24,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:24,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:24,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:24,285 INFO L87 Difference]: Start difference. First operand 712 states and 1013 transitions. Second operand 3 states. [2019-10-15 01:14:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:24,335 INFO L93 Difference]: Finished difference Result 1516 states and 2222 transitions. [2019-10-15 01:14:24,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:24,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-15 01:14:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:24,343 INFO L225 Difference]: With dead ends: 1516 [2019-10-15 01:14:24,343 INFO L226 Difference]: Without dead ends: 869 [2019-10-15 01:14:24,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:24,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2019-10-15 01:14:24,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 868. [2019-10-15 01:14:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2019-10-15 01:14:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1277 transitions. [2019-10-15 01:14:24,397 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1277 transitions. Word has length 233 [2019-10-15 01:14:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:24,397 INFO L462 AbstractCegarLoop]: Abstraction has 868 states and 1277 transitions. [2019-10-15 01:14:24,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1277 transitions. [2019-10-15 01:14:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:14:24,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:24,405 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:24,405 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1288958908, now seen corresponding path program 1 times [2019-10-15 01:14:24,406 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:24,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298542897] [2019-10-15 01:14:24,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:24,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:24,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:14:24,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298542897] [2019-10-15 01:14:24,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:24,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:24,598 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730702702] [2019-10-15 01:14:24,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:24,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:24,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:24,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:24,599 INFO L87 Difference]: Start difference. First operand 868 states and 1277 transitions. Second operand 3 states. [2019-10-15 01:14:24,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:24,664 INFO L93 Difference]: Finished difference Result 1972 states and 2994 transitions. [2019-10-15 01:14:24,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:24,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-10-15 01:14:24,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:24,673 INFO L225 Difference]: With dead ends: 1972 [2019-10-15 01:14:24,673 INFO L226 Difference]: Without dead ends: 1169 [2019-10-15 01:14:24,679 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-10-15 01:14:24,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1168. [2019-10-15 01:14:24,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1168 states. [2019-10-15 01:14:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1781 transitions. [2019-10-15 01:14:24,734 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1781 transitions. Word has length 234 [2019-10-15 01:14:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:24,735 INFO L462 AbstractCegarLoop]: Abstraction has 1168 states and 1781 transitions. [2019-10-15 01:14:24,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:24,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1781 transitions. [2019-10-15 01:14:24,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-15 01:14:24,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:24,745 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:24,745 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:24,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:24,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1347912636, now seen corresponding path program 1 times [2019-10-15 01:14:24,746 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:24,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309934721] [2019-10-15 01:14:24,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:24,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:24,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:14:25,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309934721] [2019-10-15 01:14:25,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955415677] [2019-10-15 01:14:25,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:26,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 3220 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:14:26,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:14:26,366 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:26,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:14:26,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:27,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:27,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:14:27,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-10-15 01:14:27,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70711318] [2019-10-15 01:14:27,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:14:27,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:27,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:14:27,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:14:27,307 INFO L87 Difference]: Start difference. First operand 1168 states and 1781 transitions. Second operand 9 states. [2019-10-15 01:14:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:29,108 INFO L93 Difference]: Finished difference Result 2314 states and 3542 transitions. [2019-10-15 01:14:29,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:14:29,108 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 237 [2019-10-15 01:14:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:29,116 INFO L225 Difference]: With dead ends: 2314 [2019-10-15 01:14:29,117 INFO L226 Difference]: Without dead ends: 1182 [2019-10-15 01:14:29,121 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 463 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:14:29,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2019-10-15 01:14:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1182. [2019-10-15 01:14:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1182 states. [2019-10-15 01:14:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1799 transitions. [2019-10-15 01:14:29,179 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1799 transitions. Word has length 237 [2019-10-15 01:14:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:29,179 INFO L462 AbstractCegarLoop]: Abstraction has 1182 states and 1799 transitions. [2019-10-15 01:14:29,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:14:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1799 transitions. [2019-10-15 01:14:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:14:29,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:29,188 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:29,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:29,397 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:29,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:29,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1469165754, now seen corresponding path program 1 times [2019-10-15 01:14:29,398 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:29,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144394784] [2019-10-15 01:14:29,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:14:29,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144394784] [2019-10-15 01:14:29,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552523942] [2019-10-15 01:14:29,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:30,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 3221 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:14:30,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:14:30,771 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:31,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:31,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:31,310 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:31,311 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:14:31,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-10-15 01:14:31,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999815595] [2019-10-15 01:14:31,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:14:31,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:31,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:14:31,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:14:31,313 INFO L87 Difference]: Start difference. First operand 1182 states and 1799 transitions. Second operand 7 states. [2019-10-15 01:14:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:32,376 INFO L93 Difference]: Finished difference Result 2315 states and 3552 transitions. [2019-10-15 01:14:32,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:14:32,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2019-10-15 01:14:32,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:32,385 INFO L225 Difference]: With dead ends: 2315 [2019-10-15 01:14:32,385 INFO L226 Difference]: Without dead ends: 1184 [2019-10-15 01:14:32,390 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 470 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-10-15 01:14:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2019-10-15 01:14:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2019-10-15 01:14:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2019-10-15 01:14:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1802 transitions. [2019-10-15 01:14:32,451 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1802 transitions. Word has length 238 [2019-10-15 01:14:32,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:32,451 INFO L462 AbstractCegarLoop]: Abstraction has 1184 states and 1802 transitions. [2019-10-15 01:14:32,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:14:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1802 transitions. [2019-10-15 01:14:32,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:14:32,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:32,466 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:32,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:32,684 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:32,685 INFO L82 PathProgramCache]: Analyzing trace with hash 2061869789, now seen corresponding path program 1 times [2019-10-15 01:14:32,685 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:32,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199765269] [2019-10-15 01:14:32,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:32,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:32,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:33,171 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:14:33,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199765269] [2019-10-15 01:14:33,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111351333] [2019-10-15 01:14:33,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:33,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 3222 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:14:33,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:14:34,044 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:34,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:14:34,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:34,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:34,779 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:14:34,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-10-15 01:14:34,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116544188] [2019-10-15 01:14:34,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:14:34,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:34,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:14:34,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:14:34,783 INFO L87 Difference]: Start difference. First operand 1184 states and 1802 transitions. Second operand 16 states. [2019-10-15 01:14:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:36,650 INFO L93 Difference]: Finished difference Result 2319 states and 3546 transitions. [2019-10-15 01:14:36,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:14:36,650 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 239 [2019-10-15 01:14:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:36,658 INFO L225 Difference]: With dead ends: 2319 [2019-10-15 01:14:36,658 INFO L226 Difference]: Without dead ends: 1196 [2019-10-15 01:14:36,663 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 467 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:14:36,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2019-10-15 01:14:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1194. [2019-10-15 01:14:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2019-10-15 01:14:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1813 transitions. [2019-10-15 01:14:36,716 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1813 transitions. Word has length 239 [2019-10-15 01:14:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:36,717 INFO L462 AbstractCegarLoop]: Abstraction has 1194 states and 1813 transitions. [2019-10-15 01:14:36,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:14:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1813 transitions. [2019-10-15 01:14:36,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:14:36,726 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:36,726 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:36,935 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:36,936 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:36,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:36,937 INFO L82 PathProgramCache]: Analyzing trace with hash -2071155939, now seen corresponding path program 2 times [2019-10-15 01:14:36,937 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:36,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131166096] [2019-10-15 01:14:36,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:36,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:36,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:37,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131166096] [2019-10-15 01:14:37,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399574407] [2019-10-15 01:14:37,357 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:37,909 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:14:37,910 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:14:37,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:14:37,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:14:38,212 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:14:38,704 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:14:38,705 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-10-15 01:14:38,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635396672] [2019-10-15 01:14:38,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:14:38,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:38,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:14:38,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:14:38,707 INFO L87 Difference]: Start difference. First operand 1194 states and 1813 transitions. Second operand 14 states. [2019-10-15 01:14:40,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:40,920 INFO L93 Difference]: Finished difference Result 3812 states and 5855 transitions. [2019-10-15 01:14:40,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:14:40,921 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 240 [2019-10-15 01:14:40,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:40,950 INFO L225 Difference]: With dead ends: 3812 [2019-10-15 01:14:40,950 INFO L226 Difference]: Without dead ends: 3514 [2019-10-15 01:14:40,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 01:14:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2019-10-15 01:14:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3168. [2019-10-15 01:14:41,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3168 states. [2019-10-15 01:14:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4990 transitions. [2019-10-15 01:14:41,159 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4990 transitions. Word has length 240 [2019-10-15 01:14:41,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:41,160 INFO L462 AbstractCegarLoop]: Abstraction has 3168 states and 4990 transitions. [2019-10-15 01:14:41,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:14:41,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4990 transitions. [2019-10-15 01:14:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 01:14:41,184 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:41,184 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:41,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:41,404 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:41,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:41,405 INFO L82 PathProgramCache]: Analyzing trace with hash -552310949, now seen corresponding path program 1 times [2019-10-15 01:14:41,405 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:41,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001312294] [2019-10-15 01:14:41,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:41,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001312294] [2019-10-15 01:14:41,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122253965] [2019-10-15 01:14:41,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:42,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:14:42,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:14:42,705 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:43,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:14:43,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:43,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:43,313 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:14:43,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-10-15 01:14:43,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057362609] [2019-10-15 01:14:43,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:14:43,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:43,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:14:43,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:14:43,316 INFO L87 Difference]: Start difference. First operand 3168 states and 4990 transitions. Second operand 15 states. [2019-10-15 01:14:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:46,473 INFO L93 Difference]: Finished difference Result 6230 states and 9856 transitions. [2019-10-15 01:14:46,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:14:46,474 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 241 [2019-10-15 01:14:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:46,493 INFO L225 Difference]: With dead ends: 6230 [2019-10-15 01:14:46,494 INFO L226 Difference]: Without dead ends: 3174 [2019-10-15 01:14:46,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 471 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:14:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2019-10-15 01:14:46,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 3168. [2019-10-15 01:14:46,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3168 states. [2019-10-15 01:14:46,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4988 transitions. [2019-10-15 01:14:46,648 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4988 transitions. Word has length 241 [2019-10-15 01:14:46,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:46,648 INFO L462 AbstractCegarLoop]: Abstraction has 3168 states and 4988 transitions. [2019-10-15 01:14:46,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:14:46,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4988 transitions. [2019-10-15 01:14:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-15 01:14:46,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:46,667 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:46,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:46,877 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:46,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:46,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1621920842, now seen corresponding path program 1 times [2019-10-15 01:14:46,878 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:46,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713797289] [2019-10-15 01:14:46,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:46,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:46,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:14:47,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713797289] [2019-10-15 01:14:47,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283879161] [2019-10-15 01:14:47,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:47,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 3225 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:14:47,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:14:48,020 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:48,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:48,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:48,488 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:14:48,489 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:14:48,489 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-10-15 01:14:48,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462236479] [2019-10-15 01:14:48,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:14:48,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:48,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:14:48,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:14:48,491 INFO L87 Difference]: Start difference. First operand 3168 states and 4988 transitions. Second operand 12 states. [2019-10-15 01:14:50,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:50,252 INFO L93 Difference]: Finished difference Result 4591 states and 7114 transitions. [2019-10-15 01:14:50,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:14:50,252 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 242 [2019-10-15 01:14:50,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:50,265 INFO L225 Difference]: With dead ends: 4591 [2019-10-15 01:14:50,265 INFO L226 Difference]: Without dead ends: 2361 [2019-10-15 01:14:50,274 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:14:50,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2019-10-15 01:14:50,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2361. [2019-10-15 01:14:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2361 states. [2019-10-15 01:14:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3630 transitions. [2019-10-15 01:14:50,394 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3630 transitions. Word has length 242 [2019-10-15 01:14:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:50,394 INFO L462 AbstractCegarLoop]: Abstraction has 2361 states and 3630 transitions. [2019-10-15 01:14:50,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:14:50,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3630 transitions. [2019-10-15 01:14:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 01:14:50,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:50,409 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:50,619 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:50,619 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:50,620 INFO L82 PathProgramCache]: Analyzing trace with hash 270943563, now seen corresponding path program 2 times [2019-10-15 01:14:50,620 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:50,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855309626] [2019-10-15 01:14:50,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:50,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:50,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:14:50,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855309626] [2019-10-15 01:14:50,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338180536] [2019-10-15 01:14:50,962 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:51,591 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:14:51,592 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:14:51,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:14:51,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:14:51,900 INFO L321 TraceCheckSpWp]: Computing backward predicates...